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Urban nonpoint source pollution
Learn more about urban nonpoint source pollution
What you can do
Learn more about controlling nonpoint source pollution in your area
TMDL implementation
Learn more about TMDL implementation
Nonpoint source program
Learn more about what the DNR is doing to control nonpoint source pollution
Contact information
Mike Gilbertson
Agricultural Nonpoint Source Implementation Coordinator

Agricultural nonpoint source pollution

Nonpoint runoff

Cropland runoff

Nonpoint source pollution (or "runoff pollution") of Wisconsin’s waters comes from many sources, including agricultural operations and croplands. When it rains or snow melts, that water may be polluted through contact with manure, feed leachate, or milkhouse waste. When this polluted runoff enters our lakes, rivers or groundwater, it can cause significant pollution. Runoff sediment or fertilizers used on crop lands can also cause water pollution during rain or snow melt. Good farming practices can reduce this polluted runoff and protect water quality.

Last Revised: Tuesday May 26 2015